> This adds the description of the following eight function:> > dma_sync_single_for_cpu> pci_dma_sync_single_for_cpuvoid ^^^^

That "void" is probably some cut and paste error :-)

> dma_sync_single_for_device> pci_dma_sync_single_for_device> dma_sync_sg_for_cpu> pci_dma_sync_sg_for_cpu> dma_sync_sg_for_device> pci_dma_sync_sg_for_device> > It was unclear that the API permits a partial sync (some network> drivers already do though). I made it clear that the sync_single API> can do a partial sync but the sync_sg API can't.> > We could do a partial sync with the sync_sg too, however, it's> difficult for driver writers to correctly use the sync_sg API for a> partial sync since the scatterlists passed in to the mapping API can> be modified. It's unlikely that driver writers want to do a partial> sync with the sync_sg API (because the sync_sg API are usually used> for block drivers). So I think that it's better to forbid a partial> sync with the sync_sg API.> > Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>